* The panel on the right is an interactive schematic of the instrument. Components with in/out or on/off states can be toggled by clicking on the relevant part of the image. The light path is shown in red so that one can easily verify the instrument configuration.
===Start Of Run===
====Setting name and run number====
In the SpUpNIC Control GUI:
* At the start of your run, click on the ''Advanced'' tab. In the ''Observer Info'' box, enter your name and run number. You can determine your run number from the triplicate "CCD and Unit Spectrograph" log book (stored in the "Log Books" section of the bookcase - behind you, if you're sitting at the SpUpNIC interface). Your run number will be one greater than the previous observer's run number, listed in the log book.
====Setting up the grating====
* '''Warning:''' During your start-off you will have been told about the grating instability problem. We applied a mechanical fix when the instrument is off the telescope in early April. This improved the situation, but did not completely resolve the issue - so until such time as we have completely fixed the problem, we urge users to bracket all target observations with arcs (to be taken immediately before and after the object exposures) to minimise the impact of the declination-dependent movement of the grating.
* The software knows which order-blocking filters should be used with each grating, but it is still a good idea to check that the correct filter is selected (refer to the table above). If necessary, select the required filter from the drop-down menu at the bottom of the ''Instrument Setup'' pane and click ''Go''.
====Arc lamp and filter selection====
* Two arc lamps are permanently mounted in the spectrograph - you no longer need to swap out a lamp - but the arc lamp filters are still changed manually. On the spectrograph, the CuNe lamp (Lamp 1) is in the horizontal housing, with two slots for filters in the light path. The vertically housed CuAr lamp (Lamp 2) is above it, similarly with slots for two filters at the bottom. Filter requirements are listed in the table above and the filters are stored in a small, labelled wooden box on the bench in the grating room (North-West corner of the dome).
* Alternatively, click on the appropriate lamp icon in the instrument schematic - this will switch on the lamp and insert the arc mirror into the beam. Having taken the arc, simply click on the arc mirror icon in the schematic to remove the arc mirror and switch the lamp off. One can also control the lamps using the ''Lamp/Mirror Settings'' pane of the SpUpNIC Control GUI. Click the appropriate ''Change'' state button to switch the desired lamp on/off, and to move the arc mirror into the beam to take an arc exposure.
====Focusing the spectrograph - running a Hartmann sequence====
Before each night's observations, you should focus the spectrograph. This is done using a scripted Hartmann sequence run from the SpUpNIC Control GUI. The process moves a shutter halfway into the beam, takes an arc exposure; then blocks the other half of the beam and takes a second arc exposure. The arc lines are then cross-correlated to measure the shift between the two. The procedure is repeated at a range of camera focus positions until the line shifts are minimised, indicating best focus. This procedure may be performed manually, but is typically run automatically, as follows: